Adjustable a-harrow.



No. 756,195. PATENTED MAR. 29, 1904'.

E. H. OHEEVER. V ADJUSTABLE A-HARROW.

APPLICATION FILE NOV. 22, 1901.

N0 MODEL.

Tu: uomus PETERS co FHOYO-LITHO, \usnmmou. u. c.

UNITED STATES Patented March 29, 1904.

PATENT OFFICE.

EDGAR H. CHEEVER, OF OCEANSIDE, CALIFORNIA.

ADJUSTABLE A-HARRO W- I SPECIFICATION forming part of Letters Patent No. 756,195, dated March 29, 1904;.

Application filed November 22, 1901. Serial No. 83,329. (No model.)

To all whom it may concern:

Be it known that I, EDGAR H. CHEEVER, a citizen of the United States, residing at Oceanside, in the county of San Diego and State of California, have invented a new and useful Adjustable A-Harrow, of which the following is a specification.

The object of this invention is to provide a harrow which may be cheaply and readily constructed by unskilledlabor and inwhich the parts are readily replaceable and which can be adjusted to any practical width, increasing and decreasing the space between the paths of the harrow-teeth as the harrow is widened or narrowed.

A further object is to provide a harrow which can be folded into small space for convenient handling, transportation, and storing.

In designing agricultural machinery in general, and particularly harrows, it is important to construct the mechanism in such a way that the machinery may be folded into a compact form, so that it may be easily handled and will occupy as little room as possible in ship ping. By reason of being constructed to fold into compact form the expense of crating as well as the time required for the same are materially reduced. When a machine or harrow contains outstanding arms or brackets or other devices, such parts are extremely liable to breakage in transportation; but when the parts may be folded into a compact and convenient shape they are securely protected. A further point is that the harrow complete when folded should be in a convenient shape and form, so that several harrows may be stacked or piled in a compact manner in a small space. Further, it is extremely advantageous to provide a construction which will allow of being so folded without the necessity of detaching or removing various parts which are apt to become scattered when removed and whichrequire to again be assembled or bolted in place when the harrow is ready for use. It is also important that the harrow be capable of being quickly folded by an ordinary farmhand, so that it may be stowed away in the barn when not in use.

My newly-invented harrow comprises side bars furnished with teeth and pivotally connected with each other and adjustable means for holding said side bars at various angles to each other to thereby increase and decrease the width of the harrow and likewise the space between the paths of the teeth. I preferably provide a central draw-bar, tooth-carrying side bars, ties pivotally connected to the side bars and 'adjustably and pivotally connected with the draw-bar and arms and pivotally connecting the side bars with the draw-bar and spacing apart said side bars and draw-bar far enough to admit'the ties between their respective side bars and the draw-bar, whereby the side bars, ties, and draw-bars may be brought into compact parallel relation.

This invention is capable of embodiment in different forms, and the accompanying drawings illustrate the same in that form which I at present deem most advisable.

Figure I is a perspective view of my newlyinvented harrow extended to fullwidth. A width of twenty feet, more or less, is a practical width for a harrow of this construction stood that I do not limit the invention to any particular size. Fig. II is a plan of the harrow folded. Dotted lines indicate a position of parts when the harrow is adjusted for close harrowing. Fig. III is a sectional detail on line III III, Fig. II. Fig. IV is a sectional detail along the axes of the inner ends of the ties when the harrow is adjusted to full'width. Fig. V is a sectional detail on line V V, Fig. II. Fig. VI shows adetail of a construction in which angle-iron is used in place of wood.

1 designates a draw-bar; 2 3, side bars furnished with teeth and pivotally connected with the draw-bar and with each other by suitable means.

4. 5 designate ties pivotally connected, respectively, with the side bars and pivotally and slidingly connected with the draw-bar. Suitable means are also provided for fixedly connecting the ties with the draw-bar.

It is to be understood that the draw-bar, the side bars, and the ties may be constructed of wood or of metal in the form of angle-bars the judgment of the constructor. In Figs. I

to V in the drawings I have shown these several parts as constructed of wood.

The draw-bar 1 may be perforated with perforations 6 to receive a pin 7, and the connecting device 8, which slidingly and pivotally connects the inner ends of the ties 4 5 together and with the draw-bar, may be also perforated and fastened to said draw-bar by the pin 7, inserted through said perforation.

9 designates arms carried by the side bars, respectively, and to which the ties are respectively pivoted by bolts 10. The arms 9 are preferably bent at their outer ends and clamped upon the side bars by bolts 11.

The draw-bar may be provided at its front end with a bracket comprising laterally-extending arms 12, between which the side bars are pivoted by bolts 13, as clearly shown in Fig. III. The arms 12 of the bracket extend a considerable distance beyond each side of the draw-bar to provide a space between the draw-bar and the side bars equal at least to the width of a tie, so as to allow the side bars 2 and 3 to be folded parallel and still leave room for the ties 4 and 5. By this construction the side bars and ties may be folded in close to and substantially parallel with the draw-bar, thus making an extremely compact mechanism and at the same time allowing for the various adjustments. Moreover, by this construction I am enabled to make the tie-bars nearly as long as the space between the pivotal points of the side bars, thereby increasing to the utmost the width to which the harrow may be extended.

14 designates the harrow-teeth. Preferably the side bars project in front of their pivots 13, and the projecting portions 15 are respectively furnished with one or more teeth. With this construction greater strength is secured than if the pivots were nearer the front ends of the side bars. Preferably the inner ends of the ties 4 5 are also provided with teeth 14 to serve in place of the front teeth of the side bars when the harrow is more or less folded, as shown in Fig. II. The draw-bar is also preferably provided with a centrally-arranged tooth 14 after the manner of ordinary construction.

16 designates bushings for the pivotingbolts, which may be made of a section of gaspipe and inserted in the wooden members where desired to prevent wearing and consequent looseness of said bolts.

17 designates the ordinary clevis on the draw-bar.

In practical use the harrow can be adjusted to any desirable width by drawing the bolt 7 and moving the sliding connection 8 along the draw-bar 1 until the rear ends of the side bars have been brought to the appropriate distance apart. Then the sliding connection 8 will be secured in place by inserting the bolt 7 through the same and through the appropriate one of the perforations 6. When it is desired to transport or store the harrow, the bolt 7 will again be withdrawn and the side bars brought parallel with the draw-bar, as indicated in Fig. II, whereupon the bolt 7 will be passed through the sliding connection 8 and through the drawbar, thus securing the parts in folded position.

The harrow may be folded very quickly, as all that is necessary is to remove the bolt 7 to allow the parts to be swung in. This feature is very useful in the field, as it enables the farm-hand to quickly fold up the harrow without special tools and into an oblong shape, so that it can be readily loaded on a wagon. When the harrow is folded, the pin 7 is inserted through the connecting device 8 and the registering perforation 6, and the parts are thereby securely locked in folded position.

In Fig. VI 31 designates a side bar formed of angle-iron, and 51 a tie likewise formed of angle-iron. 18 designates a clip by which the tooth 14 is clamped to the angle-iron, it being understood that the angle-iron 31 is perforated and that the tooth 14 is inserted through the perforation and then fastened by the clip 18.

What I claim, and desire to secure by Letters Patent of the United States, is-

1. A harrow comprising adraw-bar, toothcarrying side bars, ties pivotally connected to the'side bars and adjustably and pivotally connected with the draw-bar, and arms pivotally connecting the side bars with the draw-bar, and spacing apart said side bars and draw-bar far enough to admit the ties between their respective side bars and the draw-bar.

2. A harrow comprising a perforated drawbar, side bars pivotally connected with the draw-bar and furnished with teeth; said side bars being parallel with the draw-bar and spaced apart therefrom and movable into angularity with the draw-bar, arms carried by said side bars; ties pivoted to the arms, respectively; a perforated connecting device pivotally connecting the inner ends of the ties together and extending across the draw-bar; and a pin inserted through the perforations of the connecting device and draw-bar, the space between a side bar and the draw-bar being at least the width of a tie.

3. A harrow comprising a draw-bar pro vided at its front end with laterally-extending arms; side bars pivoted to said arms and furnished on both sides of said pivot with teeth; said side bars being parallel with the drawbar and movable into angularity with the draw-bar, ties pivotally connected with said side bars respectively and slidingly connected with the draw-bar; and means for fixedly connecting said ties with the draw-bar, there being a space between each side bar and the draw bar equal at least to the width of a tie.

4. A harrow comprising a draw-bar, side bars parallel thereto and provided with teeth and pivotally connected with said draw-bar;

ties pivotally connected with said side bars and pivotally and slidingly connected with the draw-bar and furnished with teeth at their inner ends; and means for fixedly connecting the ties with the draw-bar, there being a space between each side bar and the draw-bar equal at least to thewidth of a tie.

5. In a harrow the combination of a drawbar, a bracket at one end of the draw-bar, arms extending from the bracket laterally of the draw-bar, a pair of side bars pivoted to said arms and parallel with the draw-bar, teeth on the side bars, a connecting device slidably mounted on said draw-bar, ties pivoted to the connecting device and to the side bars, there being a space between each side bar and the draw-bar equal at least to the width of the tie, said ties and side bars being movable into angularity with the draw-bar, and means for locking said connecting device to the drawbar when the ties and side bars are substantially parallel with the draw-bar.

In testimony whereofI have signed my name to this specification, inthe presence of two subscribing witnesses, at Los Angeles, California, this 13th day of November, 1901.

v EDGAR H. GHEEVER.

Witnesses:

J AMES R. TOWNSEND, JULIA TOWNSEND. 

